Update appveyor.yml
Update appveyor.yml

Former-commit-id: cf8139f3cd6a6380dc33c8aaf4380f87e3a88d36
swails/conda-recipes,cwehmeyer/conda-recipes,jchodera/conda-recipes,rmcgibbo/conda-recipes,jchodera/conda-recipes,marscher/omnia-conda-recipes,cwehmeyer/conda-recipes,marscher/omnia-conda-recipes,mpharrigan/conda-recipes,danielparton/omnia-md-conda-recipes,swails/conda-recipes,peastman/conda-recipes,jchodera/conda-recipes,danielparton/omnia-md-conda-recipes,rmcgibbo/conda-recipes,jchodera/conda-recipes,marscher/omnia-conda-recipes,cwehmeyer/conda-recipes,swails/conda-recipes,peastman/conda-recipes,rmcgibbo/conda-recipes,rmcgibbo/conda-recipes,mpharrigan/conda-recipes,mpharrigan/conda-recipes,omnia-md/conda-recipes,cwehmeyer/conda-recipes,swails/conda-recipes,omnia-md/conda-recipes,peastman/conda-recipes,marscher/omnia-conda-recipes,omnia-md/conda-recipes